Ozdogan, Z. B. Et Al. 2011. The change over the years of problem solving skills of pre-service elementary mathematics teachers. 3rd World Conference on Educational Sciences (WCES) , (İstanbul, Turkey), 2278-2283.

Ozdogan, Z. B., Seyitoglu, E., & Guven, B., (2011). The change over the years of problem solving skills of pre-service elementary mathematics teachers . 3rd World Conference on Educational Sciences (WCES) (pp.2278-2283). İstanbul, Turkey

Ozdogan, Zeynep, Elif Seyitoglu, And BÜLENT GÜVEN. "The change over the years of problem solving skills of pre-service elementary mathematics teachers," 3rd World Conference on Educational Sciences (WCES), İstanbul, Turkey, 2011

Ozdogan, Zeynep B. Et Al. "The change over the years of problem solving skills of pre-service elementary mathematics teachers." 3rd World Conference on Educational Sciences (WCES) , İstanbul, Turkey, pp.2278-2283, 2011

Ozdogan, Z. B. Seyitoglu, E. And Guven, B. (2011) . "The change over the years of problem solving skills of pre-service elementary mathematics teachers." 3rd World Conference on Educational Sciences (WCES) , İstanbul, Turkey, pp.2278-2283.

@conferencepaper{conferencepaper, author={Zeynep Bahar Ozdogan Et Al. }, title={The change over the years of problem solving skills of pre-service elementary mathematics teachers}, congress name={3rd World Conference on Educational Sciences (WCES)}, city={İstanbul}, country={Turkey}, year={2011}, pages={2278-2283} }